JP2010507759A - Torque transmission device - Google Patents

Abstract

The torque transmission arrangement (10) includes a member defining the first part and the second part, and a first maximum torque transmission limit that is in frictional contact with the first part and defines a first maximum torque transmission limit determined by frictional contact with the first part. Define a second maximum torque transmission limit that is in frictional contact with the element (16) and is determined by the frictional contact with the second part and is determined by a friction coefficient that is greater than or substantially equal to the first friction coefficient. A second element. The first element receives torque from the torque generating unit, and the second element transmits torque to the torque consuming unit.

Description

  The present invention relates to a torque transmission arrangement, a torque transmission device, and a machine in which at least one of the torque transmission arrangement and the torque transmission device is integrated. The invention further relates to a compression spring washer having a frustoconical shape and a constant cross section.

  In a machine that must transmit a certain amount of torque, the torque to be transmitted may be larger than the torque that a machine receiving this torque can withstand. Therefore, it is necessary to limit the amount of torque transmitted from the torque generating unit to the torque consuming unit.

  In addition, the torque generating unit may generate a torque that is greater than the torque that the torque consuming unit can withstand. For example, in a torque generating unit connected to a water turbine or a wind turbine driven by a waterfall, a large amount of water or a strong wind caused by a storm caused by melting snow in the spring rotates the hydro turbine or the wind turbine at a speed exceeding the upper limit. In such a case, a device for limiting the amount of torque transmitted from the torque generating unit to the torque consuming unit is required.

  Furthermore, it may be desired to protect the torque generating unit. For example, the torque consuming unit is destroyed and the torque generating unit is damaged, or the generator is connected to the power supply grid, and an accident such as a short circuit stops the generator. When the generator is stopped, torque from a torque generating unit such as a steam turbine cannot be transmitted to the generator, which in turn will damage the steam turbine.

The first aspect of the present invention relates to a torque transmission device, and the torque transmission device includes:
A member defining a first part and a second part;
A first element that is in frictional contact with the first portion and defines a first maximum torque transmission limit determined by frictional contact with the first portion;
A second element defining a second maximum torque transmission limit determined by frictional contact with the second part and having a friction coefficient greater than or substantially equal to the first friction coefficient. The first element receives torque from the torque generating unit, and the second element transmits torque to the torque consuming unit.

  The first and second elements in frictional contact with the member constitute a device that further establishes a predetermined maximum torque to be transmitted. The frictional contact between the first element and the member defines the first maximum torque transmission limit or transmission capability.

  The presence of the second element makes it possible to determine a second maximum torque transmission limit that is not necessarily different from the first maximum torque transmission limit.

  In a preferred embodiment of the present invention, the second torque transmission limit is smaller than the first torque transmission limit.

  The above two torque transmission limits are such that if an excessive amount of torque is generated in the torque generating unit, the torque limiting device can protect the torque consuming unit, and if the torque consuming unit blocks and acts as a brake, It is intended to prevent damage to the gear between the generating unit or the torque generating unit. Such a situation can occur when the torque limiting device of the present invention is used in a power generation system in which a generator is driven by an engine, hydraulic pressure, steam, hydraulic power, or the like. A short circuit can occur in the power supply grid, which can have the adverse effect of blocking the generator and acting as a brake at the torque receiving end of the system. In the absence of a torque limiting assembly, the generator block provides great resistance to a torque transmitting member such as a shaft connected between the torque generating unit and a torque consuming unit such as a gear box, causing damage. When the torque receiving unit is blocked, the torque required to drive the torque receiving unit is greater than the torque that the torque generating unit can withstand.

  In normal operation, torque is transmitted from the torque generating unit to the torque consuming unit, but in an abnormal state, torque may be transmitted from the torque consuming unit to the torque generating unit.

A second aspect of the present invention relates to a torque transmission device that mechanically limits a maximum value of torque transmitted from a torque generation unit to a torque consumption unit, and the torque transmission device receives torque from the torque generation unit. Define an input and a corresponding torque output that transmits torque to the torque consuming unit. The torque transmission device is
A member defining the first part and the second part;
A first element in frictional contact with the first portion and determining a first maximum torque transmission limit by frictional contact with the first portion;
A second element in frictional contact with the second portion and determining a second maximum torque transmission limit greater than or substantially equal to the first coefficient of friction by frictional contact with the second portion, the torque A torque transmission path is defined from the input section to the torque output section through a torque transmission arrangement of the first element, the second element, the third element, and the second element third.

  A device for transmitting and limiting torque is known from document DE2005000215U1, in which the drive wheels or sprockets define opposing contact surfaces for two opposing friction elements, the two friction elements Is connected to the contact surface by being pressed against the drive wheel, and transmits torque applied to the drive wheel to a hub extending through the center of the drive wheel. In the above apparatus, the opposing friction surfaces together determine a single maximum torque, but in the present invention, the characteristic members of the present invention determine the first and second frictional contacts that determine the same or different maximum torques. It is comprised by the intermediate member which cooperates with a 2nd path | route. While the torque transmission and limiting device known from the German utility model document provides a single and specific maximum torque, the first and second aspects of the invention are characteristic of the invention. Provide two-stage torque control.

  As described in the first aspect of the present invention, the torque transmission arrangement generated in the torque transmission device determines the limit of the amount of torque transmitted from the torque input section to the torque output section. As described above, the torque transmission limit or torque transmission capability is determined by the frictional contact between the first element and the second element and the member.

  The torque transmission path can be determined by elements other than those described above, that is, additional elements for maintaining the torque transmission arrangement as will be described later.

The size of the frictional contact between the member and the first element and the frictional contact between the member and the second element can be varied. The size of these areas ^{is, 0.001~6000m 2, 0.01~10m 2, 0.1~2m} 2, 0.5~1m 2, 1~1.5m 2, 0.001~0.01m 2, 0.01~0.1m 2, 0.1~0.5m 2 ^{, 0.5~1m 2, 1~2m 2, 2~10m} 2, can be varied like 10~6000m ^2, about 300 cm ² is preferred.

  In a preferred embodiment of the present invention, anything can be added to the interface between the first element and the member or between the second element and the member. In an alternative embodiment of the present invention, friction augments and friction reducers can be added to the interface. Examples of such objects include adhesives and lubricants.

  It is intended that the frictional contact between the element and member can be varied by choosing an appropriate material for the element or member. Alternatively or additionally, the component can be coated. Further, the frictional contact can be determined, changed, and changed by determining, changing, and changing the biasing force of the element using, for example, a compression spring washer. The spring washer can be adjusted so that the biasing force can be selected according to the example to which the assembly or torque transmission limiting unit is applied.

  Furthermore, the first maximum torque transmission limit and the second maximum torque transmission limit can be determined by a friction coefficient determined between the member and the first and second elements.

  The second maximum torque transmission limit is, for example, 1 to 300%, 10 to 200%, 0.1 to 1%, 1 to 10%, 10 to 100%, 100 to 200%, 200 to more than the first maximum torque transmission limit. 300%, 300-400%, etc., 0.1 to 400% larger is advantageous.

  The difference between the torque transmission limits determined by the frictional contact between the member and the first and second elements, respectively, can be chosen such that there is a difference in the protection level of the torque consuming unit.

  At least one of the first element and the second element in the embodiment of the present invention is made of steel.

  As other types of materials, for example, alloys or other composite materials are used.

  In an advantageous embodiment of the invention, the member is a flange, the first part is a first side of the flange, and the second part is a second side opposite to the first side of the flange. It is.

  A third aspect of the present invention is a machine including a torque transmission device or a torque transmission array, and is a machine integrated with a marine engine, a large vehicle, a windmill, a hydro turbine, an underwater turbine, a steam turbine, and a generator. About.

  The torque transmission device described in the second aspect of the present invention is advantageously used for large structures such as ships, hydroelectric power plants, and windmills, and provides the above-described safety. This torque transmission device can of course be used in other situations where it is desirable to limit the amount of torque transmitted from the torque generating unit to the torque consuming unit.

A fourth aspect of the present invention relates to a frustoconical compression spring washer that is closely fitted around a round shaft, the spring washer comprising:
A body having a first annular surface and a second annular surface that are defined by an inner circle and an outer circle and that are parallel and opposite each other defining a constant cross-section;
An inner surface connecting the first annular surface and the second annular surface with the inner circle and an outer surface connecting the first annular surface and the second annular surface with the outer circle;
The center of rotation of the body having a constant cross section defined within the main body is clearly indicated. The constant cross section is defined by a partial circle and a straight line centered on the center of rotation. A rotating circular line adapted to maintain contact between the inner surface and the round shaft.

  The spring washer according to the fourth aspect of the present invention includes a part of the inner surface that gives the spring washer freedom of movement when mounted on the shaft. This spring washer can be applied to, for example, the torque transmission device described in the second aspect of the present invention, and can be integrated with the machine described in the third aspect of the present invention. A truncated cone-shaped compression spring washer having a constant cross section according to the fourth aspect of the present invention holds the torque transmission arrangement described in the first aspect of the present invention in a predetermined position when mounted on a torque transmission device. Can be used.

A fifth aspect of the present invention relates to a compression cone washer having a constant frusto-conical shape that is closely fitted in a circular cylindrical recess, and the spring washer comprises:
A body having a first annular surface and a second annular surface that are defined by an inner circle and an outer circle and that are parallel and opposite each other defining a constant cross-section;
An inner surface connecting the first annular surface and the second annular surface with an inner circle and an outer surface connecting the first annular surface and the second annular surface with an outer circle;
The center of rotation of the body having a constant cross section defined within the main body is clearly indicated. The constant cross section is defined by a partial circle and a straight line centered on the center of rotation. A rotating circular line adapted to maintain contact between the outer surface and the circular cylindrical recess.

  The spring washer according to the fifth aspect of the present invention can hold the torque transmission arrangement in the torque transmission device at a predetermined position when the spring washer is mounted in a cylindrical tube. In an alternative embodiment of the present invention, the frustoconical and constant cross-section compression spring washer, as described in the fourth and fifth aspects of the present invention, the inner surface defined by the partial circle and the portion It has an outer surface defined by a circle. An alternative embodiment of a compression spring washer with a frustoconical shape and a constant cross-section combines the spring washers according to the fourth and fifth aspects. This spring washer is attached to the shaft and can be fitted into the tube.

  Document USP 3319508 discloses an elastic retaining ring mounted on a beveled shaft. The elastic retaining ring has a rounded inner surface and an outer surface, but when the elastic retaining ring is compressed, the inner diameter changes, and the inner surface of the ring is fitted to the inclined wall of the shaft. As a feature that can be distinguished from this known elastic retaining ring, the spring washer according to the fifth aspect of the present invention, when compressed, moves only in the axial direction without moving the inner surface and the outer surface in the radial direction, so The diameter is constant.

  In a special embodiment of the present invention, at least one of the first element and the second element is constituted by a compression spring washer having the above-mentioned frustoconical shape and a constant cross section.

A sixth aspect of the present invention relates to a method for determining a first maximum torque transmission limit and a second maximum torque transmission limit in a torque transmission array. The torque transmission limit and the method for determining the transmission limit according to the sixth aspect are:
A member defining a first part and a second part;
A torque-receiving element disposed in frictional contact with the first portion;
A torque transmitting element disposed in frictional contact with the second portion;
A first biasing element that biases the torque receiving element toward the member;
A second biasing element that biases the torque transmitting element toward the member;
Determining the first maximum torque transmission limit by setting the first biasing element;
Determining the second maximum torque transmission limit by setting the second biasing element;
The second maximum torque transmission limit is greater than or substantially equal to the first maximum torque transmission limit.

A seventh aspect of the present invention relates to a method for determining a first maximum torque transmission limit and a second maximum torque transmission limit in a torque transmission array, the method comprising:
A member defining a first part and a second part;
A torque-receiving element disposed in frictional contact with the first portion;
A torque transmitting element disposed in frictional contact with the second portion;
A first biasing element that biases the torque receiving element toward the member;
A second biasing element that biases the torque transmitting element toward the member;
Determining the first maximum torque transmission limit by setting the first biasing element;
Determining the second maximum torque transmission limit by setting the second biasing element;
The first maximum torque transmission limit is greater than or substantially equal to the second maximum torque transmission limit.

  According to the basic content of the methods of the sixth and seventh aspects of the present invention, two torque transmission limits are established. As described above, torque transmission arrays are used in devices and systems that need to limit the amount of torque transmitted from one device to another. The purpose of the method according to the sixth aspect is to establish a torque transmission limit so that the torque transmission arrangement protects the torque consuming unit that receives torque from this torque transmission arrangement.

  The purpose of the method according to the seventh aspect is to determine the torque transmission limit so that the torque transmission arrangement protects the torque generating unit that transmits torque to the torque transmission arrangement.

  The methods of the sixth and seventh aspects can be used for at least one of the first, second, third, fourth, and fifth aspects of the present invention.

  Aspects and advantages of the present invention will become apparent from the embodiments of the invention described with reference to the accompanying drawings.

FIG. 1 is an exploded view of the torque transmission device. FIG. 2 is a diagram showing a torque transmission arrangement. FIG. 3 is a cross-sectional view of the torque transmission arrangement. FIG. 4 is a cross-sectional view of the torque transmission arrangement. FIG. 5 is a view showing a spring washer. 6 is a cross-sectional view of the spring washer of FIG. 7 is a cross-sectional view of the spring washer of FIG.

  FIG. 1 is an exploded view of a torque limiting assembly, generally designated by reference numeral 10, which includes a torque generator such as a marine engine, hydroelectric power plant, windmill, turbine, wave power generator, generator, Torque is transmitted by rotation to a torque consuming device including a driving device such as a ship screw.

  The torque limiting assembly 10 includes a lock disk 12. Lock disk 12 secures torque limiting assembly 10 longitudinally to a generator shaft (not shown). In a preferred embodiment of the present invention, the lock disk 12 is made of 52-3 steel and is coated with a coating as specified in ISO 14713C3 which gives a very long life.

  The lock disk 12 is connected to the hub 14. The hub 14 is preferably made of 60-2 steel and is coated with a coating as specified in ISO 14713C3 which gives a very long life. The hub 14 serves to support the members of the torque limiting assembly 10. The hub 14 is mounted on the shaft of the generator so as to transmit torque and act on the generator. The hub 14 has a keyway 15 for centering the first friction disk 16.

  The groove 13 of the hub 14 is used when mounting or assembling the torque limiting assembly 10. The groove 13 is also used to adjust the hub 14 during assembly and further during testing.

  The surface 17 of the hub 14 also serves as a centering surface of the flange 18 described later.

  The first friction disk 16 is disposed between the hub 14 and the flange 18, and forms a part of a torque transmission / restriction arrangement including the first friction disk 16, the flange 18, and the second friction disk 20. This torque transmission / limitation arrangement can reliably limit the torque transmitted from the torque generating unit to the torque consuming unit. The first and second friction disks 16 and 20 serve to give a predetermined coefficient of friction to the friction element. The first and second friction disks 16, 20 are preferably made of 52-3 steel, but other suitable materials can be used. The first friction disk 16 transmits 2/3 of the torque, and the second friction disk transmits 1/3 of the torque.

  The first and second friction disks 16 and 20 abut against parallel surfaces near the center hole of the flange 18. Contact surfaces are established on both sides of the flange 18. This contact surface is an area where the flange 18 and the first and second friction disks 16 and 20 are in frictional contact.

  The lower side of the rim of the hub 14 abuts the first friction disk 16 to establish a first friction interface, and the second friction interface is established between the first friction disk 16 and the flange 18. A third friction interface is defined between the flange 18 and the second friction disk 20. A fourth friction interface is defined between the second friction disk 20 and the thrust collar or pressure ring 22.

  The flange 18 further holds a plain bearing (not shown) that helps center the flange with respect to the hub 14. The plain bearing is a guide ribbon made of a mixture of polytetrafluoroethylene / bronze / graphite.

  The torque limiting assembly further comprises a pressure ring 22. The pressure ring 22 serves to center the second friction disk 20 and the relief disk 28. The relief disk 28 is made of 16MnCr5 steel. The sliding bearing is disposed on the inner surface 24 of the pressure ring 22. In one embodiment, the relief disk can be omitted and the pressure ring 22 and spring nut 38 surfaces can be hardened instead.

  The pressure ring 22 has a groove, all indicated by reference numeral 26, which transmits torque to the hub 14 using three wedges or guides (not shown). The guide also serves to center the spring disk as will be described later.

  In addition, the pressure ring 22 has a rim that provides a measurement surface for control measurements to ensure that the assembly is assembled correctly.

  The torque limiting assembly 10 further includes two compression spring washers 32, 34 that are superposed on each other and have a frustoconical shape and are shown in section 30.

  The spring washers 32 and 34 will be described in detail later with reference to FIGS.

  When the spring washers 32 and 34 are centered from the outside, the relief disk 28 can be omitted.

  The pressure ring 22 transmits the compression force from the compression spring washers 32 and 34 having two frustoconical shapes and a constant cross section to the first and second friction disks 16 and 20. The pressure ring 22 transmits torque from the second friction disk 20 to the hub 14 through the three wedges described above. Different numbers of wedges are used in the apparatus of an alternative embodiment of the invention. In a special embodiment of the invention, wedges are not used and are omitted. In this embodiment, the spring disk is centered, for example by a hub.

  A second relief disk is mounted below the spring washers 32 and 34. The relief disk 36 is the same as the relief disk 28 described above. The relief disk 36 acts as a compression member between the spring washer 34 and the spring nut 38. Hardening of the relief disc prevents deformation of the spring nut and spring washer.

  A spring nut 38 is attached to the bottom of the torque limiting assembly 10. The spring nut functions to center the relief disk 36 and adjust or bias the spring washers 32 and 34. Furthermore, the spring nut helps to maintain a constant axial position of the torque limiting assembly on the drive shaft. The spring nut also provides a second measurement surface for controlling and measuring the displacement of the spring washer.

  The spring nut 38 has a milling groove 39 that houses a screw lock that allows the spring nut 38 to be securely attached to the hub 14.

  FIG. 2 shows a torque limiting assembly 10 in which the various members shown in FIG. 1 are assembled.

  It can be seen that the key generator 41 extends from the torque limiting assembly. The key generator transmits force and torque between the generator shaft and the hub 14.

  3 and 4 are cross-sectional views of the torque limiting assembly 10 taken along lines 40 and 42, respectively.

  FIG. 5 is a schematic view of the spring washer 32 shown in FIG. The spring washer 32 is a tubular body having a central hole 44. The center hole 44 is defined by the inner wall 46. Spring washer 32 is preferably made of a metallic material and has a coating to increase the life of spring washer 32. In a preferred embodiment of the present invention, the spring washer is made of 51Cr4V / 1.8159 steel and is coated with a coating as specified in ISO 14713C3 which gives the washer a very long life. In other embodiments, the material is replaced with, for example, 50 CrV4 or other suitable material.

  The torque limiting assembly 10 shown in FIG. 1 has two such spring washers 32,34. The spring washer serves to hold the member and the friction disk in place. The spring washer applies a force to the friction disc. The spring washer maintains constant inner and outer diameters regardless of the magnitude of the applied axial force. The thickness and width of the spring washer is selected according to the application.

  The spring washer 32 is a compression spring washer having a frustoconical shape and a constant cross section, and is closely fitted around a round shaft. Further, the spring washer is closely fitted in a circular cylindrical recess.

  Further, the main body of the spring washer 32 has a first annular surface and a second annular surface which are defined by an inner circle and an outer circle and which are parallel to each other and define a certain cross section.

  As can be seen from FIG. 6 and more specifically FIG. 7, a circular circular line of rotation that defines the center of rotation 50 of the body with a constant cross section is established in the body. The constant cross section has an inner surface defined by a partial circle 54 centered on the rotation center and a straight line so that the compressed main body can be rotated and contact between the inner surface and a round shaft can be maintained.

  When the spring washer 32 receives a compressive force from other components of the torque limiting assembly, the shape of the spring washer 32 can rotate or pivot about the rotation center 50 as described above. Yes. The rounded corner or outer surface 52 ensures that the spring washer is always in contact with the inner wall of the tube, and similarly, the rounded corner or inner surface 54 is mounted by the spring washer and the torque limiting assembly 10 is mounted. It is guaranteed to always maintain contact with the torque transmission shaft.

  The corners 52, 54 are rounded in a special manner as described above to ensure that contact between the element and the shaft is not lost at any point. This is intended so that the torque limiting assembly 10 can be safely attached.

  The inner radius ensures that a constant spring washer inner diameter is maintained regardless of the force applied to the spring washer, and the outer radius is a constant spring washer outer diameter regardless of the force applied to the spring washer. Is guaranteed to be maintained. As can be seen from FIG. 7, the center of rotation is not located at the center of the cross section of the spring washer because the inner and outer radii are different.

  A prototype of the torque transmission device according to the present invention was made. This prototype consists of the following members. That is, 52-3 steel lock disc with ISO 14713C3 specified coating. The outer diameter of the lock disc is 129.5mm, the inner diameter is 25mm, and the maximum diameter of the angled hole is 42mm.

  52-3 steel hub. The hub has an outer diameter of 226 mm, a hole inner diameter of 120 mm, and a groove spacing of 45 degrees.

  The first friction disc made of SA-92. The first friction disk has an outer diameter of 220 mm, an inner diameter of 176.5 mm, and a thickness of 5 mm.

  Flange made of 52-3 steel with the coating specified in ISO 14713C3. The diameter of this flange is 395 mm, the diameter of the four large holes is 60 mm, the diameter of the four small holes is 25 mm, and the thickness is 25 mm.

  Second friction disc made of bronze ampco18. The second friction disk has an outer diameter of 220 mm and an inner diameter of 176.5 mm.

  52-3 steel pressure ring. The outer diameter of this pressure ring is 240 mm, the lower diameter of the rim is 230 mm, the inner diameter is 220.5 mm, three grooves are arranged at intervals of 120 degrees, and the width of each groove is 16 mm.

  Relief disc made of 16MnCr5 steel. Each relief disk has an outer diameter of 220.5 mm, an inner diameter of 180 mm, and a thickness of 5 mm.

  Two spring washers with an outer diameter of 268.7mm, 750N and a height of 20.5mm when loaded. The cross-sectional dimension of this spring washer is 16.5 mm × 44.3 mm. The distance in one direction from the corner of the sidewall to the center of rotation is 20.96 mm, and the distance in the other direction from the corner of the sidewall to the center of rotation is 8.25 mm. The distance from the center of rotation to the first curved surface is 23.36 mm, and the distance from the center of rotation to the second curved surface is 20.96 mm.

  Spring nut made of 52-3 steel. The outer diameter of the spring nut is 240 mm, the lower diameter of the rim is 230 mm, the inner diameter is 170 mm, and there are three grooves arranged at intervals of 120 degrees, and the width of each groove is 20 mm. The width of the spring nut is 43mm and the width of the rim is 3mm.

  Three key generators made of C45K steel. Each key generator has two recesses at a position 121 mm away from the lower end and one recess at a position 36 mm away. The key generator is 36mm thick and 20mm wide.

  Spring washer guide made of C45K steel. The dimensions of this spring washer guide are 16 mm x 9.5 mm x 70 mm.

  Bronze screw lock. This screw lock has a cylindrical shape with a diameter of 8.5 mm and a length of 10 mm.

  A plain bearing with a thickness of 2mm, a diameter of 176mm, and a height of 29.8mm. This plain bearing is mainly made of Teflon (registered trademark).

  The materials described above can be replaced with other suitable materials.

Claims (13)

A torque transmission arrangement,
A member defining a first part and a second part;
A first element that is in frictional contact with the first portion and defines a first maximum torque transmission limit determined by frictional contact with the first portion;
A second element defining a second maximum torque transmission limit in frictional contact with the second portion, determined by frictional contact with the second portion, and determined by a friction coefficient greater than or substantially equal to the first friction coefficient; Prepared,
The first element receives torque from a torque generating unit, and the second element transmits torque to the torque consuming unit. Torque having a torque input unit for mechanically limiting the maximum value of torque transmitted from the torque generating unit to the torque consuming unit, receiving torque from the torque generating unit, and a torque output unit transmitting torque to the torque consuming unit In the transmission device,
This torque transmission device
A member defining the first part and the second part;
A first element in frictional contact with the first part and determining a first maximum torque transmission limit by frictional contact with the first part;
A second element that is in frictional contact with the second part, is determined by frictional contact with the second part, and determines a second maximum torque transmission limit determined by a friction coefficient that is greater than or substantially equal to the first friction coefficient; A torque transmission arrangement with
A torque transmission device in which a torque transmission path is defined from the torque input unit to the torque output unit via a torque transmission arrangement of the first element, the second member, the third element, and the second element third. The torque transmission arrangement according to claim 1 or the torque transmission device according to claim 2, wherein the first maximum torque transmission limit and the second maximum torque transmission limit are between the member and the first and second elements. Torque transmission arrangement or torque transmission device determined by a coefficient of friction determined respectively. The torque transmission device according to claim 2 or 3, wherein the second maximum torque transmission limit is, for example, 1 to 300%, 10 to 200%, 0.1 to 1%, 1 to 1 than the first maximum torque transmission limit. 10%, 10 ~ 100%, 100 ~ 200%, 200 ~ 300%, 300 ~ 400%, etc. 0.1 ~ 400% larger torque transmission device. The torque transmission device according to any one of claims 2 to 4, wherein at least one of the first element and the second element is made of steel. The torque transmission arrangement according to claim 1 or the torque transmission device according to claims 2 to 5, wherein the member is a flange, the first part is a first side of the flange, and the second part is A torque transmission arrangement or torque transmission device that is a second side opposite the first side of the flange. A machine having the torque transmission arrangement or the torque transmission device according to any one of claims 1 to 6, wherein the machine includes a marine engine, a large vehicle, a hydroelectric power plant, a windmill, a hydro turbine, and a water level turbine. Or a machine integrated into a generator. A compression spring washer with a frustoconical shape and a constant cross-section that is closely fitted around a round shaft,
A body having a first annular surface and a second annular surface that are defined by an inner circle and an outer circle and that are parallel and opposite each other defining a constant cross-section;
An inner surface connecting the first annular surface and the second annular surface with the inner circle and an outer surface connecting the first annular surface and the second annular surface with the outer circle;
The center of rotation of the body having a constant cross section defined within the main body is clearly indicated. The constant cross section is defined by a partial circle and a straight line centered on the center of rotation. A compression spring washer comprising a rotating circular line adapted to maintain contact between the inner surface and the round shaft. A compression spring washer with a frustoconical shape and a constant cross-section that is closely fitted around a round shaft,
A body having a first annular surface and a second annular surface that are defined by an inner circle and an outer circle and that are parallel and opposite each other defining a constant cross-section;
An inner surface connecting the first annular surface and the second annular surface with an inner circle and an outer surface connecting the first annular surface and the second annular surface with an outer circle;
The center of rotation of the body having a constant cross section defined within the main body is clearly indicated. The constant cross section is defined by a partial circle and a straight line centered on the center of rotation. A compression spring washer comprising a rotating circular line adapted to maintain contact between the outer surface and the circular cylindrical recess. The torque transmission arrangement or torque transmission device according to any one of claims 1 to 7, wherein at least one of the first element and the second element is a frustoconical compression section having a constant cross section according to claim 8 or 9. Torque transmission array or torque transmission device composed of spring washers. A method for determining a first maximum torque transmission limit and a second maximum torque transmission limit in a torque transmission array,
A member defining a first part and a second part;
A torque-receiving element disposed in frictional contact with the first portion;
A torque transmitting element disposed in frictional contact with the second portion;
A first biasing element that biases the torque receiving element toward the member;
A second biasing element that biases the torque transmitting element toward the member;
Determining the first maximum torque transmission limit by setting the first biasing element;
Determining the second maximum torque transmission limit by setting the second biasing element;
The second maximum torque transmission limit is greater than or substantially equal to the first maximum torque transmission limit. A method for determining a first maximum torque transmission limit and a second maximum torque transmission limit in a torque transmission array,
A member defining a first part and a second part;
A torque-receiving element disposed in frictional contact with the first portion;
A torque transmitting element disposed in frictional contact with the second portion;
A first biasing element that biases the torque receiving element toward the member;
A second biasing element that biases the torque transmitting element toward the member;
Determining the first maximum torque transmission limit by setting the first biasing element;
Determining the second maximum torque transmission limit by setting the second biasing element;
The first maximum torque transmission limit is greater than or substantially equal to the second maximum torque transmission limit. 13. A method according to claim 11 or 12, wherein the torque transmission arrangement is as described in any one of claims 1 to 10.

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